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Updated: Apr 17, 2026

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
Published on: May 9, 2014
Derivation of a simple relationship between pulsed and steady-state dose limits due to general recombination within
1*Los Alamos National Laboratory, Los Alamos, NM 87545.
Abstract:
This paper discusses various calculational and measurement methods involved with general recombination losses of air-filled ionization chambers exposed to either steady-state or pulsed photon fields. Derived therefrom is a simple relationship between the pulsed and steady-state cases that allows the determination of expected pulsed-field losses from steady-state loss measurements within, for instance, typical Cs calibration fields. Several examples are provided to illustrate each calculational and measurement method, as well as the newly derived relationship.
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